We are in the process of moving from exchange 2003 to 2010.  On the front end, we use outlook 2010.  We are moving from authenticating to domain "A" to linking the mail account to domain "b".  Domain A has a trust to domain B.  We are trying to do this so that users no longer have to authenticate to domain A (laptop and then to domain B(mail).  When we do this and link the accounts, we still get prompted to authenticate to domain B for mail.  shutting off cached mode does not help.  We want to make this transparent to users and do not want to have to manually rebuild the profile for each one.

Any ideas?

• Edited by tongd 20 hours 34 minutes ago